A lifting frame for lifting a transformer or reactor is provided that includes a frame wall section. The frame wall section extends within a frame wall section plane. A lifting opening is formed within the frame wall section, wherein a lifting opening axis is oriented normal with respect to the frame wall section plane. The frame wall section immediately surrounding the lifting opening has a thickness that increases with decreasing distance to the lifting opening axis. This construction allows for providing an edge of the lifting opening with a comparatively large surface or contact area, while avoiding an overdesign of the frame wall section thickness. An increase in the surface of the edge generally reduces a contact pressure.

A lifting device is provided, the lifting device providing a cable and a powered winch which winds and unwinds the cable. Each end of the cable provides a slack-adjustable point of attachment to a load. The points of attachment may each be attached to an opposing end of a load, such that each point of attachment provides a counterweight to the other point of attachment. Slack between the points of attachment may be tensed by a bridging connector. The lifting device may lift a load by two lateral points of attachment such that the load may be elevated off a floor with minimal vertical clearance, and may be laterally actuated by casters hanging on a suspended rail.

A lifting device is provided, the lifting device providing a cable and a powered winch which winds and unwinds the cable. Each end of the cable provides a slack-adjustable point of attachment to a load. The points of attachment may each be attached to an opposing end of a load, such that each point of attachment provides a counterweight to the other point of attachment. Slack between the points of attachment may be tensed by a bridging connector. The lifting device may lift a load by two lateral points of attachment such that the load may be elevated off a floor with minimal vertical clearance, and may be laterally actuated by casters hanging on a suspended rail.

A transport vehicle includes a body; a lift platform that includes a holder to hold an article, the lift platform being ascendable and descendable with respect to the body; a lift driver that raises or lowers the lift platform by feeding out or taking up a flexible suspension support; a sensor provided in the lift driver and emits a detection wave having directivity toward a certain lower position; a lateral extender that causes the lift driver to project laterally from the body while providing cantilever support for the lift driver; and a corrector that corrects a shift in an emission direction of the detection wave that arises from bending of the lateral extender in a state in which the lift driver is caused to project laterally from the body by the lateral extender.

A transport vehicle includes a body; a lift platform that includes a holder to hold an article, the lift platform being ascendable and descendable with respect to the body; a lift driver that raises or lowers the lift platform by feeding out or taking up a flexible suspension support; a sensor provided in the lift driver and emits a detection wave having directivity toward a certain lower position; a lateral extender that causes the lift driver to project laterally from the body while providing cantilever support for the lift driver; and a corrector that corrects a shift in an emission direction of the detection wave that arises from bending of the lateral extender in a state in which the lift driver is caused to project laterally from the body by the lateral extender.

The invention relates to a tower crane, preferably a rotary tower crane, particularly preferably a top-slewing crane, comprising a jib and a counter-jib. The jib and/or counter-jib is hinged to the tower top and/or rotating platform by means of at least one connection point. A first connection part of the at least one connection point has a concave stop surface, and a second connection part of the connection point comprises a convex counter-stop surface, wherein the counter-stop surface of the second connection part acts on the stop surface of the first connection part by means of a pressure force in order to produce a force-fitting connection between the connection parts.

A jack-up platform is described having a horizontal working deck that may be jacked up out of the water by moving its legs to a position wherein they take support on an underwater bottom. The jack-up platform further comprises a mooring system for mooring a floating vessel at a mooring side of the jack-up platform. The mooring system comprises an elongated support means for supporting a hull part of the floating vessel, and guiding means connected to the hull of the jack-up platform at the mooring side. The guiding means are able to rigidly hold the elongated support means in a support position, in which the elongated support means is within reach of the hull part of the floating vessel to be supported when the hull is jacked out of the water and the jack-up platform rests on its legs. A method for mooring a floating vessel using the jack-up platform is also described.

An apparatus for use by a load-lifting machine in aerial lift and transportation of loads, the apparatus comprising: a triangular body having a first side and a second side, the triangular body being adapted to balance weights of the loads simultaneously aerially lifted and transported; a plurality of holes, each hole of the plurality of holes being disposed in a corner of the triangular body; a plurality of couplers, each coupler of the plurality of couplers being connected to one of the plurality of holes; a lifting hook comprising a self-locking latch and an eye loop, the lifting hook being connected to a first coupler of the plurality of couplers via the eye loop, and the lifting hook being adapted to attach to the loads; and a lifting ring connected to a second coupler of the plurality of couplers, the lifting ring being adapted to connect to the load-lifting machine.

A method of handling a wind turbine component (54) for assembly or maintenance, comprises coupling one or more unmanned air vehicles (20) with the wind turbine component (54) so that at least a portion of the weight of the wind turbine component (54) can be supported and lifted by the one or more unmanned air vehicles (20). The method further comprises coupling one or more cranes (50) with the wind turbine component (54) so that at least a portion of the weight of the wind turbine component (54) can be supported and lifted by the one or more cranes (50). The method further comprises controlling the one or more unmanned air vehicle (20) and crane (50) in coordination to lift the wind turbine component (54) and manoeuvre said component (54) with respect to a wind turbine (52).

A jack-up platform is described having a horizontal working deck that may be jacked up out of the water by moving its legs to a position wherein they take support on an underwater bottom. The jack-up platform further comprises a mooring system for mooring a floating vessel at a mooring side of the jack-up platform. The mooring system comprises an elongated support means for supporting a hull part of the floating vessel, and guiding means connected to the hull of the jack-up platform at the mooring side. The guiding means are able to rigidly hold the elongated support means in a support position, in which the elongated support means is within reach of the hull part of the floating vessel to be supported when the hull is jacked out of the water and the jack-up platform rests on its legs. A method for mooring a floating vessel using the jack-up platform is also described.